Will Grant Gustin get a chance to play The Flash on the big screen? Credit: Warner Bros., DC Entertainment.

Will the Flash appear in the forthcoming Justice League movie? And if so, will Grant Gustin play the role? Fool contributor Tim Beyers explains why the answers to these questions matters to both fans and investors in the following video.

For the few who don't already know, Gustin played visiting Central City police scientist Barry Allen in episodes 8 and 9 of the current season of Arrow. He'll soon star in his own series -- The CW picked up The Flash as part of its new schedule.

The order creates an interesting dilemma for Time Warner (NYSE:TWX.DL) and Justice League movie director Zack Snyder. Why? The Flash is one of the original seven members of the League, yet adding Gustin to the cast would break from tradition.

Tom Welling spent 10 seasons playing Clark Kent in Smallville but never got the chance to play Superman on the big screen. DC has a history of keeping its TV and movie properties distinct, and fans shouldn't bank on a shift now.

Regardless, one may be in the works. Arrow has spent most of the current season introducing viewers to new DC Comics characters: Black Canary, Nyssa al Ghul, Brother Blood, and the Suicide Squad. Gotham proposes much of the same, profiling early versions of villains who go on to plague Batman. Warner television produces both series and The Flash, and as such, could set the conditions for a successful TV-to-movie crossover.

It's at least worth the risk, Tim argues. Marvel's Agents of S.H.I.E.L.D. boosted interest in Captain America: The Winter Soldier before it entered theaters and it's had a blockbuster run since. DC could enjoy a similar tailwind -- especially if The Flash succeeds as Arrow has.

Now it's your turn to weigh in. Do you want to see Grant Gustin play the Flash in the Justice League movie? Please watch the video to get the full story and then leave a comment to let us know your take, including whether you would buy, sell, or short Time Warner stock at current prices.

Tim Beyers is a member of the Motley Fool Rule Breakers stock-picking team and the Motley Fool Supernova Odyssey I mission. He owned shares of Time Warner at the time of publication. Check out Tim's web home and portfolio holdings or connect with him on Google+Tumblr, or Twitter, where he goes by @milehighfool. You can also get his insights delivered directly to your RSS reader.

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