/* ссср + литва */
SELECT id_film,rus,name,count(*) as cnt,concat
FROM content co
INNER JOIN country_relation USING(id_content)
WHERE id_country IN (13,123)
group by id_film having cnt=2
/* ссср + азербайджан */
SELECT id_film,rus,name,count(*) as cnt
FROM content co
INNER JOIN country_relation USING(id_content)
WHERE id_country IN (13,136)
group by id_film having cnt=2
/* ссср + латвия */
SELECT id_film,rus,name,count(*) as cnt
FROM content co
INNER JOIN country_relation USING(id_content)
WHERE id_country IN (13,54)
group by id_film having cnt=2
/* ссср + грузия */
SELECT id_film,rus,name,count(*) as cnt
FROM content co
INNER JOIN country_relation USING(id_content)
WHERE id_country IN (13,61)
group by id_film having cnt=2
/* ссср + армения */
SELECT id_film,rus,name,count(*) as cnt
FROM content co
INNER JOIN country_relation USING(id_content)
WHERE id_country IN (13,89)
group by id_film having cnt=2
/* ссср + беларусь */
SELECT id_film,rus,name,count(*) as cnt
FROM content co
INNER JOIN country_relation USING(id_content)
WHERE id_country IN (13,69)
group by id_film having cnt=2
/* ссср + украина */
SELECT id_film,rus,name,count(*) as cnt
FROM content co
INNER JOIN country_relation USING(id_content)
WHERE id_country IN (13,62)
group by id_film having cnt=2