Tatiana Yankelevich, the daughter of Soviet physicist (and 1975 Nobel Peace Prize winner) Andrei Sakharov, will make a rare public appearance in these parts Sunday when she introduces a screening at the Coolidge Corner Theatre of “Khodorkovsky,” a documentary about Mikhail Khodorkovsky, the wealthy onetime Russian oligarch who’s been imprisoned for the past decade. Khodorkovsky is considered a “prisoner of conscience” by Amnesty International, which is cosponsoring the screening. His son, Pavel, will also be there and is expected to say a few words.Mark Shanahan can be reached at email@example.com. Follow him on Twitter @MarkAShanahan. Meredith Goldstein can be reached at firstname.lastname@example.org. Follow her on Twitter @MeredithGoldste.