The ISP, which launched its CinemaNow partnership in September, is also sponsoring the Raindance film festival and its offshoot, Raindance East.
The Lovefilm deal, just completed, will go live in May. Alex Hole, commercial director at Tiscali UK, said: "Lovefilm is part of our long-term strategy and we look to work much deeper with them to give a service that gives our users more value."
The Lovefilm service will be integrated into the Tiscali UK site and follows the ISP's deals with travel and insurance providers. According to Hole, Tiscali is looking to tender its money aggregation service.
Its sponsorship of Raindance includes a short-film competition, whose winner is voted by Tiscali's broadband users. The winner, a first-time filmmaker, will be announced in September at the 13th Raindance film festival in London.
Tiscali currently shows five exclusive new short films a month, in partnership with Raindance.
Richard Ayers, portal director at Tiscali UK, explained: "Entertaining content has always been an area of excellence for Tiscali - our unrivalled database of original film reviews and trailers for our tiscali.tv service are just two."
He added: "By partnering the Raindance short-film festivals, we're committing to support creative talent in this area and shouting out to broadband users that our site is a great place to start for all your internet needs."
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