He is such a great actor that no one ever recognizes him except for in Harry Potter! Such a shame he isn't recognized more!
Colin Firth and Alan Rickman
Alan Rickman: Questions and answers at the Glasgow Film Theatre after the Scottish premiere of his film "A Little Chaos", which he co-wrote, directed and stared in as Louis XIV, as part of the Glasgow Film Festival. Feb 21, 2015. with Allan Hunter, Festival Co-Director
I think this was from a formal photoshoot, but I don't know the photographer or the date ... will need to research.
Alan Rickman. 1985 - 1986, Les Liaisons Dangereuses. Le Vicomte de Valmont RSC - Stratford's Other Place, Barbican, The Pit, London - Olivier Award for play of the year in 1986 and Evening Standard Award of the same year.