Parents need to know that Guardians of the Galaxy Vol. 2 is the follow-up to Marvel's hit sci-fi adventure about a team of outlaws who band together to battle space bad guys. The whole gang returns, including pilot Star-Lord (a.k.a. Peter Quill) (Chris Pratt), aliens Gamora (Zoe Saldana) and Drax (Dave Bautista), and talking raccoon Rocket (voiced by Bradley Cooper). Even talking tree Groot (Vin Diesel) is back, although now he's a baby. The first movie had some salty language, action violence, and a few sexual references, so expect the same in the sequel. But unless the formula has changed a lot, this action-packed superhero movie will likely be fine for older tweens and teens.