Cuthbert, who has spent two seasons on ABC's "Happy Endings," was a series regular on "24" for the first three seasons and returned to the show as a recurring player as star Kiefer Sutherland's character's daughter.
"I know Kiefer is busy working on his show," Cuthbert told The Hollywood Reporter. "I think it's all pretty much there and ready to go, it's just a matter of when he wants to do it. I'm confident that it will happen because, for a long time, I heard nothing about it and then got a call. They basically said be on standby, and of course I'd be thrilled to do it. We'll see."
The "24" movie was scheduled to shoot during Sutherland's hiatus from Fox's "Touch" in April 2012, but plans have fallen through.
"We finally got a script to a really amazing place and unfortunately, because of my schedule ... and everyone else's schedule and trying to find the right slot to do the film in," Sutherland told Leno. "We're still trying and if we don't get it into this slot, we'll do it next year."
HuffPost TV caught up with Sutherland at the premiere of "Touch," where he said familiar faces would be returning to the action franchise. "There are a few [familiar faces in the script], but there are quite a few new ones as well," he said. Time will tell if Cuthbert will be one of those familiar face.
Click over to The Hollywood Reporter for their full interview with Cuthbert.