Emma Stone and Steve Carell are terrific.
'Battle of the Sexes' is an interesting look on the famous tennis match from 1973 between Billie Jean King and Bobby Riggs. I'm sure it takes all the usual creative license that biopics tend to do, but that's doesn't bother me - especially with this type of event.
Stone (King) and Carell (Riggs) are definitely what hold this film together, without those two I don't believe it would've been as enjoyable. Sarah Silverman (Gladys) and Andrea Riseborough (Marilyn) are alright, though the main attraction here are the two leads.
Talking of Marilyn, I didn't really care for the love stories on show - with Marilyn, but also those involving Larry (Austin Stowell) and Priscilla (Elisabeth Shue). The rest is sufficiently entertaining, though.
It's sometimes a little too on the nose with the (obviously positive) message it's portraying, but that's just a small thing to note. Overall, this is a production I'd recommend you watch - tennis/sports fan or not.