Smith admitted he joined the film due to director Daniel Espinosa's involvement and encouragement from Karen Gillan, who portrays Nebula in the Marvel Cinematic Universe and previously worked with Smith on Doctor Who.
It will be Smith's second big movie, if the rumor is correct that he has been cast in the next chapter of Star Wars - however Smith commented at the time that he was unaware that he has been cast saying "As far as I can tell, I'm definitely not,". However just like his time on Doctor Who, nothing can be ruled out as Smith might just be keeping secrets, but it should be kept in mind that when the rumor was announced it was never confirmed by the studio's.
Morbius will be directed by Daniel Espinosa and star Jared Leto, Adria Arjona, Matt Smith, Jared Harris and Tyrese Gibson. It is currently scheduled to be released in the US on July 31, 2020, it had previously been set by Sony for release on July 10.