
The first Samba School technical rehearsal in the Sambodromo is on the 6th December. Entrance remains free. These rehearsals are enormously popular - in 2009 there was an average of 40,000 spectators at each one. This year these rehearsals will mostly be on Saturday and Sunday evenings; the Friday night events have been curtailed because the necessary road closures caused enormous traffic problems last year.
Saturday 6th Dec also has 3 local football matches , so the rehearsals may be later than originally advertised, to allow the football crowds to disperse down Avenida Presidente Vargas before it is partially closed for the rehearsal.
To find out more about the Rio Carnival technical rehearsals in the sambodromo, and to see a timetable, click here.

Imperatriz’ samba enredo has been voted the most popular of the Grupo Especial songs for Rio Carnival by a specially selected panel of judges in O Dia, the Rio de Janeiro newspaper. I agree; nice melody, good lyrics and, crucially, easy to sing.
Imperatriz’s theme for carnival 2010 is ‘Brazil of all the gods', and you can see a preview of their costumes for carnival 2010 here. Imperatriz’s carnavalesco (artistic designer) is Max Lopez. The official Grupo Especial CD is released on 7th December; you can buy it here.
Tickets for Rio Carnival 2010
Tickets are going on sale in the next couple of weeks. They will all be sold out in minutes, mostly to Cariocas (Rio locals) and agencies. As a tourist you are very unlikely to buy at these original face prices. Expect to buy from an agency with a mark-up of at least three times the face value. Its already possible to reserve tickets for the sambodromo through online agencies.
Original face values:( R$ = Brazilian Reals);Frisas (for 6 people) from R$3000 to R$6,500 per night, Arquibancadas (stands or bleachers)- from R$110 to R$300 per night per seat.

I've heard a sneak preview of the Rio carnival official samba CD 2010 (Grupo Especial) and it rocks! Read more here
The Rio samba school Salgueiro is planning to be holding its street rehearsals regularly on Wednesday evenings at Rua Sivas Teles, starting at 9pm.
The whole samba school will be practicing their parade down on the street, and singing their samba for 2010 "Stories without end"
The bateria will be out in force with over 200 drummers, led by Mestre Marcão, and the puxador Quinho singing the song through a huge mobile sound system.
As usual with street rehearsals, there will be hot dog stalls, street barbecues, plenty of beer and other street food and drink to create a real party atmosphere.

Heres a pic of one of the costumes the samba school Mocidade Independente is producing for carnival 2010.