You're in the Movies sounds like a decent idea on paper but in reality it is a poorly made and at best mediocre game.
The game is set up as a series of sucky movies that have you pose or do mini games to put into a movie. The movies at first are amusing but tire quickly. Many of the mini-game styles are repeated from just pointing to something or moving your arms quickly. The mini-games are also very shallow at annoying and not at all fun or enjoyable. There are also parts where you pose for the movie. You don't have to even try. At first I actually posed with effort but after my third movie I got tired and played with it from flipping the camera off to making face or just standing. After you finish a movie it takes around 3-5 minutes or more at times to save, I'm serious. After I got like 5 achievements I just stopped playing.
Also there is a multiplayer. If you somehow get everything to work right and get everyone to fit, you might just have a mediocre time. It seems like merely an add on and you might only get a chuckle from the brokenness of the game with you friends. One annoying thing is that you can't access the mini-games from a main place after you played them. This means if you are after achievements, you have to remember what mini games are in which out of the 40 movies and or guess to play the set mini game for an acheivement to get a high score or something.
The only good part is that the game comes with the camera which is normally $39.99 and the bundle is $39.99 so you pretty much get the game for free. The camera is only 1.3 mega pixels but it is still decent. It can also be used as a webcam too. Also you could consider the game Totemball to come with it too because it is free on the marketplace but requires the camera to play. It kinda sucks but that is a review for another day. Overall, only get this game if you want to get the camera.