Russian President Vladimir Putin said he would soon pardon jailed oil tycoon Mikhail Khodorkovsky, who still has eight months left to serve of a more than 10-year jail sentence.
A lawyer for Khodorkovsky said however that the tycoon had not asked Putin for a pardon. Khodorkovsky was jailed on charges including theft and fraud but the president's opponents regard him as a political prisoner.
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The 61-year-old filmmaker said far-right politics wasn't isolated to his own nation but was a "global phenomenon" with a common enemy.
Mr Cohen is due to appear in federal court in New York at 4pm local time on Tuesday.
The woman in her 50s was detained after the incident at the entrance gates to the Department of Taoiseach in Merrion Street Upper, Dublin.