Fans of Zac Efron and Lily Collins are crossing their fingers as the two former lovebirds were caught hanging out again. It has been reported that the two stars reignited their love spark while working together on the Netflix movie “Extremely Wicked, Shockingly Evil And Vile.”

“They’ve had amazing nights together,” an insider said, as reported by Gossip Cop. “They’ve always had a spark, and they were so good together — but back then Zac was a huge star, and Lily was still starting out.”

“[They] have been hanging out loads since filming wrapped, and if Lily has her way, it will continue,” the alleged source also said. For most fans, it will not come as a surprise that Collins tries to get serious with Efron again. After all, this should make a very interesting publicity trail when it’s time for them to promote their upcoming movie, which chronicles the life of the infamous Ted Bundy (Zac Efron) and his longtime partner, Elizabeth Kloepfer (Lily Collins).

The Netflix original movie is based on Kloepfer’s memoir “The Phantom Prince: My Life With Ted Bundy.” The movie documents what it was like to be in a relationship with the famed serial killer. It also features Kloepfer’s struggle to believe that her lover commits horrific crimes.

It’s no secret that both Efron and Collins are enjoying their time with each other while filming the movie, as shown in one video. Several interviews also indicate that the two have nothing but praises to share about each other’s performances. “I remember a few days into filming, I just came to work to watch on set because [Lily] was having scenes with Haley Joel Osment, and I was watching her performance and I was blown away,” Efron told E! News.

This might break some hearts, but Collins admitted to being good friends with her co-star. “I used to do reporting for Nickelodeon, so I literally interviewed him at an orange carpet event years ago. We’ve been friends ever since, so we finally got to work together,” she told E! News while promoting the film at the Sundance Film Festival. Although both of them are playing lovers in the new film and spending more time promoting it, the two appears to be just friends for now.

It seems like the rumors of Efron and Collins dating in real life is a negative. But the thing with Hollywood life is that things can go in many surprising directions.

Lily Collins and Zac Efron Actors Lily Collins and Zac Efron attend the screening of "Extremely Wicked, Shockingly Evil and Vile" during the 2019 Tribeca Film Festival at BMCC Tribeca PAC on May 2, 2019, in New York City. Jim Spellman/WireImage