Britney Spears opened her Las Vegas residency last night, but music isn't the only thing on the pop princess's mind. Spears tells E! News she'd love to return to the big screen. "I would love to act," she said. "I would love to do movies. If it was the right part, it would be really cool…I love funny movies." Spears may have sold millions of records, but her acting career hasn't been as illustrious.