But be sure to pick your flicks carefully.
Action movies designed for older children are definitely a bad idea.
For one thing, the noise level is too harsh for your toddler's sensitive ears, and may scare her. She's also at the age when what she sees is what she believes, and a scary movie can bring on nightmares. Even some G-rated movies may be too much for her to handle. If she does get scared, be sure to work through it with her. Answer all her questions and support her while she resolves her emotions.