While many fans are counting down the days until the premiere of The CW's Arrowverse crossover "Crisis on Infinite Earths," others have gone a little further to show their enthusiasm.An impressive, 5-minute fanmade trailer for "Crisis on Infinite Earths" is getting some wide recognition, including from the showrunner The CW's Arrowverse series, Marc Guggenheim.

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Guggenheim thanked the creatives behind the trailer and noted he hopes the final product lives up to the fans' expectations.

The trailer itself is a DC fan's pipe dream for a live-action crossover event. Thanks to some clever editing, the video includes former and current actors that don the tights and iconic costumes, such as Henry Cavill's Superman and even Christian Bale's Batman.

While some of the cameos are a stretch, others are not so far off. Recently, a recanted report revealed DC Universe's Titans would appear on during the crossover, but nothing has been confirmed.

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"Crisis On Infinite Earths" is said to be Arrowverse's most ambitious crossover yet, featuring characters from Arrow, The Flash, Supergirl, DC's Legends of Tomorrow, Black Lightning, Batwoman and more.

"Crisis on Infinite Earths" begins Sunday, Dec. 8 at 8 p.m. ET/PT on Supergirl, then continues in Batwoman on Monday, Dec. 9 at 8 p.m. ET/PT and in The Flash on Tuesday, Dec. 10 at 8 p.m. ET/PT. After the winter hiatus, the crossover will conclude on Tuesday, Jan. 14 in Arrow at 8 p.m. ET/PT and in DC's Legends of Tomorrow at 9 p.m. ET/PT.