Netflix has announced a new documentary focusing on Britney Spears‘ conservatorship, Britney vs Spears – see the teaser below.The streaming platform shared an 18-second preview of the Erin Lee Carr-directed project tonight (September 21), with a full trailer coming tomorrow (September 22).“The following audio is a voicemail from Britney Spears to a lawyer on January 21st, 2009 at 12:29 a.m,” a message reads at the start of the clip, which goes on to hear the pop star seek advice on “the process