Freeheld is an uneven drama that frequently veers from tragedy to drudgery. Which is a shame, since its true story – of homosexual policewoman, Laurel Hester – is both fascinating and vital. Arriving hot on the heels of the legalisation of same-sex marriage in the US, this otherwise unremarkable film represents a missed opportunity. The film chronicles cancer-stricken Hester’s (Julianne Moore) fight…