Hollywood went trailer-crazy over the past few days, and we round them up here.

Marvel has released its third trailer for Black Widow, which has racked up over 70 million views in the first 24 hours, per The Hollywood Reporter.  The studio appears to be hoping for a big theatrical release for the film; release was recently delayed from May to July 9 (see "Geek Film Date Shuffle").

Warner Bros. has released, via IGN, a trailer for the upcoming release in the DC Universe Movies series: Batman: The Long Halloween, Part One.  The new animated feature, due out after the next release in the series, Justice Society: World War II, which will be released in digital on April 27 and in Blu-ray formats on May 11, is based on the mid-90s story by Jeph Loeb and Tim Sale.

Warner Bros. has released the first trailer for Space Jam: A New Legacy, starring LeBron James and the Warners toon characters.  The film will be released July 16.

Paramount+ has released a teaser trailer, introduced by Patrick Stewart, for the second season of Star Trek: Picard.  The new season, which will be released in 2022, will feature Q, played by John de Lancie, who played the character on Star Trek: The Next Generation, according to Variety.

Similarly, Star Trek: Discovery star Sonequa Martin-Green introduces the trailer for the fourth season of the series, which will be released later this year.