'Split' star Betty Buckley reveals 'subliminal message' of M. Night Shyamalan's film

Betty Buckley, who stars alongside James McAvoy in M. Night Shymalan's upcoming thriller, "Split," recently revealed to AOL Entertainment that there is a "subliminal message" in the film.

The movie centers on Kevin, who suffers from Dissociative Identity Disorder (D.I.D.) and has 23 other personalities. His wide-ranging behavior is brought to life by McAvoy's incredibly versatile performance, which becomes even more awesome when the audience realizes the potential of the human mind that Kevin represents.

SEE ALSO: Director M. Night Shyamalan teases potential 'Split' sequel: 'Maybe there's a future'

As Buckley, who plays Kevin's therapist Dr. Fletcher, put it, "Split" (out Jan. 20) forces the audience to consider "the potential of humanity, which is really vast. We've come so far as a species, but we have so far still to go, and I think we can do it. I love that subliminal message of "Split" that [director] Night has given us. [It] is one of real hope."

When discussing the film with me, the 69-year-old actress called it "an honor to get to work with" McAvoy and called his acting in "Split" "one of the best performances [...] that I've ever seen."

See photos of Betty Buckley:

At one point during production, while filming an intense scene, Buckley recalled the wild reaction that everyone on set had to McAvoy's particularly powerful performance.

"When they called cut, the whole crew -- everybody! -- all of us watching were just like, 'Bravo!,'" she remembered.

We're right there with Betty on this one; we've seen "Split," and it's absolutely amazing. Watch our full interview with Betty above.

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