If she had known that his plan included the manipulation of peoples minds, she might have been slightly more reluctant to go along with it, but at the same time she was so happy that Aloysius was spending time with her of his own free will, listening for her opinion (even if he might end up disregarding it later on down the line) that those little sister instinct were overriding everything else. She shifted on the chair and watched the scenery pass by them.
"You know, I'm pretty sure The Muppets is out in the cinema right now," she mused, sinking into that mischievous side of herself that was really only drawn out when her brother was around, the side that played more than harmless pranks for her own amusement. "We could switch it with another film that's definitely not Universal..." She pursed her lips, "There's that movie out- Blood Car- that's about using human blood as a new form of petrol. Sounds shitty but y'know..."
She didn't think about cutting reels for their own film though that would be infinitely more fun and very much more Fight Club-esque, but Ally often lacked the concentration or patience to do something that required more input than the odd bit of trouble. It was why her pranks were always shorter lived and she never went for the long game. She knew she'd just lose her interest pretty quickly.