Voltage Pictures holds international rights and has begun talks with buyers at the AFM.
As previously announced Matthew McConaughey stars in the film as a Texan cowboy diagnosed with HIV who becomes a kingpin of unregulated alternative treatment and takes a stand against political corruption.
Dallas Buyers Club is set to begin principal photography in New Orleans on Nov 11.
Jean-Marc Vallée will direct from a screenplay by Craig Borten and Melisa Wallack. CAA represents North Ameircan rights.