Ever since the announcement that the Supergirl TV show from Greg Berlanti (The Flash, Arrow) and Ali Adler (Glee, The New Normal) had been picked up for a full series commitment by CBS, the show has been moving quickly towards getting into actual production throughout these past few months with filming beginning early this morning.

As we now know, the cast for the show consists of Melissa Benoist as Supergirl, Mechad Brooks as Jimmy Olsen, Calista Flockhart as Cat Grant, Laura Benanti as Kara’s biological birth mother Alura Zor-El, Chyler Leigh as Kara’s foster sister Alexandra, and Dean Cain and Helen Slater in unknown roles.

The series will have most of the same creative team and crew from Greg Berlanti’s other DC television ventures, but other than a simple plot synopsis and the talent involved, not much is known about Supergirl at this point. In fact, while it’s been presumed that the series will premiere sometime in 2015, nothing has been confirmed concerning a premiere date for the show.

supergirl tv show superman villains Supergirl Begins Filming   What to Expect: Premiere, Crossovers & More


As previously mentioned, the filming for the pilot episode began today, with several tweets from members of the cast and crew releasing photos from the set. The hour-long episode will be directed by Glen Winter from a script penned by Berlanti and Adler. The Flash showrunner Andrew Kreisberg tweeted the following image from the set this morning:

#supergirl !!!!

A photo posted by Ali Adler (@aliadler) on

Winter has directed six episodes of Arrow as well as three episodes of The Flash at this point, including last year’s momentous “Flash vs Arrow” crossover, so while Supergirl isn’t airing on the same network as its predecessors, it certainly appears as though it will not only be similar in its tone and feel to the other two shows, but also in its aesthetic as well.

Now ever since the series was announced, it’s been rumored whether or not the show would crossover with Arrow and The Flash, with fans crossing their fingers hoping for the good news to come. CBS president Nina Tassler was quoted in the past saying she doesn’t expect the show to crossover with the CW series anytime soon, so the odds may not be looking good. However, Greg Berlanti has come out and said multiple times he would want the three series to crossover with each other at some point, so hope isn’t gone quite yet.

Supergirl The Flash Comic Shared Universe Supergirl Begins Filming   What to Expect: Premiere, Crossovers & More


The problem is that crossing over two heroes on the same network is one thing, but crossing over three different superheroes on two different networks may prove to be more complicated for both the CW and CBS than the networks believe is worth the effort. Not to mention that all signs are pointing towards Superman existing within the same universe as his Kryptonian cousin, meaning Supergirl may already have its fair share of superpowered beings on its roster.

In the end, fans most likely won’t know if the three shows will crossover with each other until it’s announced by the networks and showrunners. Unless, Supergirl drops any Easter eggs relating to Arrow or The Flash, which is highly likely considering how well the showrunners on the CW series have been in sneaking links to each other throughout the past few seasons.

Supergirl TV Actress Melissa Benoist Supergirl Begins Filming   What to Expect: Premiere, Crossovers & More

Supergirl star Melissa Benoist


Still, the announcement that the series has begun filming comes as welcome news, indicating a likely Fall premiere date for the series after the Summer break later this year. Supergirl seems to be jumping forward with new developments every week and with the series actually beginning filming, fans may just get to see a glimpse of the series sooner than they had originally believed.

So what do you think Screen Rant readers? When do you think the show will premiere? Do you think we could see a crossover with The Flash or Arrow? If so, why? Let us know in the comments down below!

Supergirlwill premiere on CBS sometime in 2015.

Source: Twitter

Follow Alex Welch on Twitter @Neversaydie97