Have you ever been sitting in the movie theater, watching the Oscars, or flipping through gossip magazines and just thought, "Celebrities seem to have it all, don't they?" Fame, money, washboard abs. Life is a peach for the ladies of the red carpet (personal scandals aside). However, before you get jealous of gorgeous celebs like Jennifer Aniston and Eva Mendes for their enviable bodies and income brackets, you should know they work hard for their assets -- particularly the ones men ogle over and we dream of having.

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The women of Hollywood might have some slight advantages: There's genetics, of course. But they've also got access to the best fitness trainers in the world, and enough money and time to invest in those trainers. So sure, they've got a one up, but does that mean you should give up on the body of your dreams? The tight butt of a superstar? The svelte thighs of a pop star? The lean arms you see on the big screen? No. And even if you don't care about getting Aniston's body, it never hurts to learn some new tone-up tips, right?

To help you reach your fitness goals, we chatted with the trainers of the hottest bods in Hollywood. Our goal? To find out the exact exercises and general fitness tips they teach their A-list clients in order to get them toned and tight. These blockbuster moves will get you into shape, and who knows, maybe even an agent.

Celeb trainer Michael George says this is how he gets Witherspoon's core, legs, and butt toned:

Start in a down lunge position and bring your arms in front of your face in pyramid position (think boxing). Keeping your upper body relaxed, lift your back knee up towards your chest so you are standing on one bent leg. When the leg comes up near the chest extend your leg from the knee (flick the leg like a martial art kick), pushing out with the heel and keeping your standing leg bent. Then gently place the leg back down the starting position (down lunge). Do 15 to 25 reps on each side, 2 to 3 times a week.

Celeb trainer Joe Dowdell uses this move to get the starlet's core tight and arms and shoulders toned:

Put some paper plates on the floor and assume a plank position with your forearms on the floor, your shoulders directly above your elbows, and your toes on the paper plates. From there, contract your core and lats and slowly pull your upper body forward, slightly dragging your feet three to six inches forward. Then slowly push your body back into the starting position where your elbows are directly under your shoulders. Move 10 to 12 times forward and backward for three sets, taking rests in between, for 15 to 30 seconds each.

See a video demonstration of it here.

Dowdell says he uses this move to get Mendes' butt and thighs in tip-top shape:

At the gym, use the cable column with a rope attachment and set the rope to the bottom position, straddling it facing away from the machine. Hold the rope with both hands and walk out a couple steps from the machine. Keeping your weight on your heels, back arched, and chin tucked in, sit back, letting the cable pull your arms back through your legs. Fire your hamstrings and glutes to get you back up to the standing, starting position, paying specific attention to pulling Your hips through and pushing your butt cheeks together. Do three sets of 10 to 12 reps, resting 45 to 60 seconds in between.

See a video demonstration of it here.

Aniston's yoga guru Mandy Ingber shares how she strengthens Jen's abs with this yoga-esque core strengthener:

Balance on your sit bones (the bony part of your butt) and extend your arms straight out in front of you, parallel to the floor, keeping your chest and sternum facing upward. Start with your legs off the floor, knees bent so that your calves are parallel to the floor. Extend your legs straight so that your toes are at eye level. Balance here, using your lower abdominal muscles to keep steady. Slowly lower down and hover your shoulders and feet a few inches off of the floor, arms extended along your sides (and also hovering above the floor). Draw your right knee in, extend IT straight up, then bring it down alongside the left leg. Repeat with the left leg. Do this one more time on each side, then sweep back into Boat Pose with the knees bent. Finally extend the legs straight, coming into Full Boat and hold for two breaths.