Are there particular genres you're interested in, or moods you're aiming to hit? I think most 10- or 11-year-olds would really like these, without being too childish for teens:
- Wolfwalkers (cute)
- Coraline (creepy)
- Princess Mononoke (epic)

• Wendell & Wild (spooky, whimsical stop-motion)

• Nimona (cute fantasy movie adapted from a comic book)

• Percy Jackson tv series

Gravity falls, best animation show ever.

Its 2 seasons of an actual plot and character development. It has probably one of the best show endings i've ever seen

Hanna (2011). Fantastic little action thriller with a great early performance from Saoirse Ronan as a child assassin. Kids first Bond/Bourne type of thing. Also a phenomenal soundtrack by the Chemical Brothers.

Atlantis (the animated Disney movie)

Emperor's New Groove

Lilo and Stitch

Kiki's Delivery Service

Legend of the Galactic Heroes